problems with colour in cs3 please help :)

[slyx]

hey there :)
I got some serious problems with colours in photoshop... i guess if i try to translate my problem into english, noone would understand me so i made some screenshots..
Some facts wich could may be important;
-photshop cs3
-i got two monitors; Acer H233HA widerscreen and a old samsung lcd
i just paint on the acer
ah and at the thirt screenshot the darker colours are on top of the lighter ones
please help me:painting:

[slyx]

oh damn could you delete this thread please^^
brush opacity setting was set on luminance -.-